Bold relief fabrication by means of electroconvection: basic properties of a suitable mixture

M.A. Zöller Department of Chemistry, Faculty of Science, University of Paderborn, Warburger Str. 100, D-33098, Paderborn, Germany

N. Stich Department of Chemistry, Faculty of Science, University of Paderborn, Warburger Str. 100, D-33098, Paderborn, Germany

S.A. Benning Department of Chemistry, Faculty of Science, University of Paderborn, Warburger Str. 100, D-33098, Paderborn, Germany

A. Hoischen Department of Chemistry, Faculty of Science, University of Paderborn, Warburger Str. 100, D-33098, Paderborn, Germany

H.-S. Kitzerow Department of Chemistry, Faculty of Science, University of Paderborn, Warburger Str. 100, D-33098, Paderborn, GermanyCorrespondence[email protected]

Abstract

Electroconvection of liquid crystals does not only lead to a large variety of spontaneously formed patterns, but these patterns can also be used as a template for the fabrication of polymer surfaces exhibiting a periodic bold relief. Here, a useful room-temperature nematic mixture consisting of two photostable liquid crystals and a photosensitive cross-linker is presented. Its stability diagram in the frequency-voltage plane, the influence of monomer concentration and the topography of the resulting polymer surfaces are described.

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Acknowledgements

The authors would like to thank Yoshiki Hidaka for illuminating discussions. Financial support by the Deutsche Forschungsgemeinschaft (project KI 411/5-2) is gratefully acknowledged.

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Bold relief fabrication by means of electroconvection: basic properties of a suitable mixture

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Bold relief fabrication by means of electroconvection: basic properties of a suitable mixture

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